[PATCH 2/2 v3] drm/pl111: Enable device-specific assigned memory

Eric Anholt eric at anholt.net
Wed Apr 18 16:45:15 UTC 2018


Linus Walleij <linus.walleij at linaro.org> writes:

> The Versatile Express has 8 MB of dedicated video RAM (VRAM)
> on the motherboard, which is what we should be using for the
> PL111 if available. On this platform, the memory backplane
> is constructed so that only this memory will work properly
> with the CLCD on the motherboard, using any other memory
> area just gives random snow on the display.
>
> The CA9 Versatile Express also has a PL111 instance on its
> core tile that can address all memory, and this does not
> have the restriction.

Reviewed-by: Eric Anholt <eric at anholt.net>
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